Tapio Wirkkala (Hanko 1913 - Helsinki 1985) Incalmo vase of the series "Bolle". Execution by Venini, Murano, 1994. Colorless "talpa" and "acquamare" glass, drawing 503.1 from the Catalogo Verde Venini. Engraved signature and date under the base "venini tw 94". (h 35 cm.) Literature A. Venini Diaz de Santillana, Venini. Catalogo ragionato 1921-1986, Skira, Milano 2000, pp. 229, 292; Venini. Glass object, catalogo della fornace, Murano 2000, p. 36